Since today is Li Chun (Start of Spring), there are many talks about curing the annual 5 Yellow Star and the most common fix is to use the salt water cure 安忍水. I remember some years ago seeing a client with one behind her main door, setup by her previous feng shui master to cure the 5 yellow of her house's natal chart. Anyway, the truth is this cure was first invented and recorded in the book Zhai Yun Xin An 宅运新案 written during China's early Republican period and was ACTUALLY meant for curing the 7 Robbery Star during Xuan Kong Period 3 and 4. This was explained in details by Hong Kong master, Chen Xuetao 陈雪涛 in one of his books. The excerpt below: